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Investment in American Shale Oil, LLC (Details 1) - AMSO, LLC [Member] - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
ASSETS    
Cash and cash equivalents $ 204 $ 1,052
Restricted cash and cash equivalents 47 47
Other current assets 85 119
Equipment, net 181 242
Other assets 861 861
TOTAL ASSETS 1,378 2,321
LIABILITIES AND MEMBERS' INTERESTS    
Current liabilities 654 1,324
Other liabilities 861 861
Members' interests (137) 136
TOTAL LIABILITIES AND MEMBERS' INTERESTS $ 1,378 $ 2,321